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Re: Aart's Micro-KIM Programming Tutorial

Thanks for posting! I like these tutorials and I follow them on your web page whenever you post an update on Google Plus. This forum doesn't get many visitors anymore so don't let that deter you from writing future tutorials. Thanks for the kind words Jac! Much appreciated! I realize this forum doe...
by AartBik
May Fri 05, 2017 1:45 pm
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-KIM Tutorial: The Memory Map

Let’s revisit the Micro-KIM memory map, introduced in the third tutorial. +-----------+ | 2K EPROM |$1fff | monitor | | program |$1800 +-----------+ | 6532 RIOT |$17ff | I/O, timer| | and RAM |$1740 +-----------+ | optional |$173f | I/O, timer| | and RAM |$1400 +-----------+ | |$13ff | 5K RAM | | |$...
by AartBik
Apr Sun 23, 2017 8:33 pm
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-KIM Tutorial: Available as Single PDF

If you were following (and hopefully enjoying) this Micro-KIM tutorial, you may have noticed a rather long silence after the last posting. Unfortunately, my day job and a move plus remodeling claimed most of my spare time. However, I plan to continue the tutorial really soon again! In the meanwhile,...
by AartBik
Apr Sun 16, 2017 10:28 pm
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-KIM Tutorial: Brightness of LED Display

A demo is a program that shows off the abilities of a computer or programmer, sometimes even beyond the limits of an original architectural design. For example, a well-known demo theme on the Commodore 64 consists of rendering sprites in the border, i.e. outside the area originally destined for rend...
by AartBik
May Mon 23, 2016 1:15 am
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-KIM Tutorial: The LED Display

The following schematic illustrates what is fun about retro computing: the complete schematic of a microcomputer fits on a single page (a higher resolution PDF can be downloaded from the Briel Computers website). schematic.jpg The schematic shows that the 6 character LED display is controlled throug...
by AartBik
May Sun 22, 2016 2:23 am
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-KIM Tutorial: The Monitor Program

A simplified memory map of the Micro-KIM is shown below. This tutorial explores the 2K EPROM, leaving a more detailed exploration of the free RAM and 6532 RIOT for later. Address space $1400 to $173f is unused in the standard Micro-KIM kit configuration. +-----------+ | 2K EPROM |$1fff | monitor | |...
by AartBik
Apr Sun 17, 2016 5:48 pm
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Re: MicroKim programming tutorials

Thanks for posting these links cappy2112. Note that I am also trying to keep the full tutorial in this forum under the "Software" category, although I may not be able to include all attachments I can use on my personal blog. http://www.brielcomputers.com/phpBB3/viewtopic.php?f=16&t=1739
by AartBik
Apr Sat 16, 2016 10:36 pm
 
Forum: Micro-KIM General Discussion
Topic: MicroKim programming tutorials
Replies: 1
Views: 5145

Micro-KIM Tutorial: A First Assembly Program

At the lowest level, the 6502 executes numerical machine code. For example, the following bytes in hexadecimal format constitute a simple program that displays a single 8 on the LED display of the Micro-KIM. a9 ff 8d 40 17 a9 09 8d 42 17 4c 0a 02 Let's enter this program into the memory of the Micro...
by AartBik
Apr Sat 16, 2016 1:06 pm
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-KIM Tutorial: Getting Started

Perhaps reminiscing the past is a sign of getting older, but I cannot help but look back fondly at the times I learned programming machine code on the Commodore 64 in the eighties. Therefore, it is probably no surprise I still occasionally enjoy programming 6502 on the Micro-KIM, which is a modern r...
by AartBik
Apr Sat 16, 2016 1:08 am
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Aart's Micro-KIM Programming Tutorial

Are you curious how I programmed this wave on the Micro-KIM? If so, then please keep an eye on this forum thread where I plan to publish a series of tutorials on how to operate and program the Micro-KIM! You can also follow along on my blog or on Google Plus.

kim1.GIF
kim1.GIF (976.11 KiB) Viewed 35539 times
by AartBik
Apr Fri 15, 2016 8:30 pm
 
Forum: Software
Topic: Aart's Micro-KIM Programming Tutorial
Replies: 9
Views: 35539

Micro-Kim weekend: timer-based interrupts

A rainy weekend was a perfect excuse to play with my micro-KIM, which had been collecting dust in a drawer for too long. I had fun using my own cross-assembler to develop and generate programs in paper tape format, and upload these to the micro-KIM via the PuTTY client. I figured out how to use the ...
by AartBik
Apr Sun 10, 2016 10:39 pm
 
Forum: Software
Topic: Micro-Kim weekend: timer-based interrupts
Replies: 0
Views: 4009

Paper tape format with all opcodes

For testing purposes, I used my cross-assembler to generate the following paper tape format that contains all documented opcodes (assuming I made no typos in the original assembler input; the program itself does not do anything useful). ;18C0006912651275126D34127D34127934126112711229122512350623 ;18...
by AartBik
Nov Mon 17, 2014 2:33 am
 
Forum: Software
Topic: Paper tape format with all opcodes
Replies: 1
Views: 4829

Re: My 6502 disassembler- not working on the paper tape dump

Your disassembly dump was a big help! Thanks If you've got more disassembly dumps, please post them (and a reference to the sources, so I can compare my output). Glad to help. If I find other interesting examples, I can post them here (and hopefully you will download my assembler to generate your o...
by AartBik
Nov Tue 11, 2014 12:37 am
 
Forum: Software
Topic: My 6502 disassembler- not working on the paper tape dumps
Replies: 15
Views: 24573

Re: My 6502 disassembler- not working on the paper tape dump

For reference, when I got my Kim-1, I extended my 65xx cross-assembler with paper tape format output (both as output of the assembler, and as input for the built-in dis-assembler). Below is the dis-assembly for battleship. $ lin2c64 -dP battle **** MOS Technology 6510 Assembler **** for the Commodor...
by AartBik
Nov Fri 07, 2014 2:03 pm
 
Forum: Software
Topic: My 6502 disassembler- not working on the paper tape dumps
Replies: 15
Views: 24573

Re: Scrolling display utility

chassum wrote:Aart,
I _really_ like your assembler. Thanks for providing it.


Thanks for your very kind words. One is glad to be of service!
by AartBik
Jan Mon 07, 2013 2:46 pm
 
Forum: Software
Topic: Scrolling display utility
Replies: 11
Views: 22114
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